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-   -   Rough idle, but runs great at over 1500 rpm (https://www.dieselbombers.com/chevy-gmc-6-2l-6-5l/126138-rough-idle-but-runs-great-over-1500-rpm.html)

BYRQN33 03-16-2015 12:41 PM
Rough idle, but runs great at over 1500 rpm
 
Hello I'm a new diesel owner and PROUD to be :) Anyway my truck idles Rough, it's a 93 chev 6.2,, it's even rougher like say if I'm sitting at a red light I gotta put it in Nutruel just so it smoothens out. Any suggestions or cures?? I don't have a lot of cash to throw at it too, thanks

Mayhem 03-17-2015 04:37 PM
Originally Posted by BYRQN33 (Post 1088785)
Hello I'm a new diesel owner and PROUD to be :) Anyway my truck idles Rough, it's a 93 chev 6.2,, it's even rougher like say if I'm sitting at a red light I gotta put it in Nutruel just so it smoothens out. Any suggestions or cures?? I don't have a lot of cash to throw at it too, thanks
More info on the truck is needed 1/2 ton or 3/4 ect vin code S or F, but it sounds like you have a injector not working start cracking injector lines one at a time the one that makes no difference is the culprit.

Oh and is the truck smoking ?

Mayhem 03-17-2015 07:54 PM
Originally Posted by BYRQN33 (Post 1088785)
Hello I'm a new diesel owner and PROUD to be :) Anyway my truck idles Rough, it's a 93 chev 6.2,, it's even rougher like say if I'm sitting at a red light I gotta put it in Nutruel just so it smoothens out. Any suggestions or cures?? I don't have a lot of cash to throw at it too, thanks
More info on the truck is needed 1/2 ton or 3/4 ect vin code S or F but sounds like you have a injector not working start cracking injector lines one at a time the one that makes no difference is the culprit.

BYRQN33 03-18-2015 03:21 PM
Ecg valve? ?
 
Originally Posted by Mayhem (Post 1088877)
More info on the truck is needed 1/2 ton or 3/4 ect vin code S or F, but it sounds like you have a injector not working start cracking injector lines one at a time the one that makes no difference is the culprit.

Oh and is the truck smoking ?
Truck smokes at idle and lots driving off. Not too terribly but she smokes. I did crack every injector line but they all appear ok. Wondering could my ecg valve be the issue?

HeavyChevy95 03-18-2015 04:12 PM
'93 6.2 model.?. Sounds like a fuel restriction. Check lift pump, fuel strainer, and fuel filter conditions....

6.2 Liter Diesel Engine

Added just in case its a typo
6.5 Liter Turbo Diesel Engine


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